11111111099965 has 8 divisors (see below), whose sum is σ = 13913043464448. Its totient is φ = 8502415450320.

The previous prime is 11111111099941. The next prime is 11111111099987. The reversal of 11111111099965 is 56999011111111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11111111099965 - 2⁹ = 11111111099453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48309178581 + ... + 48309178810.

It is an arithmetic number, because the mean of its divisors is an integer number (1739130433056).

Almost surely, 2^{11111111099965} is an apocalyptic number.

It is an amenable number.

11111111099965 is a deficient number, since it is larger than the sum of its proper divisors (2801932364483).

11111111099965 is an equidigital number, since it uses as much as digits as its factorization.

11111111099965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96618357419.

The product of its (nonzero) digits is 21870, while the sum is 46.

The spelling of 11111111099965 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, ninety-nine thousand, nine hundred sixty-five".